active soil organic matter
decomposition of soil organic matter
grouping of soil organic matter
Quality of soil organic matter
Rate constant of mineralization Study on the Spatial Variability of Soil Total Nitrogen in
Soil organic matter
土壤有机质含量
土壤有机质
土壤有机碳
土壤有机物
有机质含量变化
有机质含量
有机碳
有机质
土壤有机、森林－草原生态系、δ13C值
绿洲棉田
Soil organic matter content
Soil organic matter contents
soil organic matter SOM
Soil organic nitrogen component
soil organic nitrogen fractions
soil organic nitrogen mineralization
Soil total nitrogen
微生物氮
土壤全氮含量
土壤全氮
土壤总供氮量
土壤总氮
全氮
soil total nitrogen and total phosphorus
soil total nitrogen STN
soil total organic carbon